The identification of two new races of Pyrenophora tritici-repentis from the host center of diversity confirms a one-to-one relationship in tan spot of wheat

Key Points

• New races of Pyrenophora tritici-repentis were identified, linking them to wheat tan spot disease.
• The study reveals a one-to-one relationship between these races and their host plants.
• Exploration in a host center of diversity enhanced the understanding of disease variation in wheat.
• Findings may lead to improved management strategies for tan spot in wheat crops.